Inventions That Changed the World
The medieval era was not short of groundbreaking ideas. As we'll explore here important scientific leaps and popular new products were invented in this era, some of which remain important to this day.
The Printing Press
Date 11 th—15th Century
Use: Publishing
Well before Johannes Gutenberg brought the idea of mass production of printed text to Europe with his Gutenberg Bible, the moveable type printing press was already in use in China. Before this, in Asia as in Europe, books were handwritten to be copied. In 1440 Gutenberg applied similar technology to mass produce books for the general public. Freeing up access to knowledge in a cheap and efficient way was a game changer.
Coffee
Date: 15tlh Century
Use: Drink
The exact timing and origin of coffee bean cultivation is greatly disputed, but we can say with some confidence that by the 15th century coffee beans were being grown and roasted for the production of coffee in the Yemeni region of Arabia. From there it would spread to Egypt and eventually to Europe. First though it took root in the Near East where the stimulating drink became a popular alternative to alcohol. The secondary offshoot of coffee drinking became the spread of coffeehouses where men would meet to play games like chess as well as discuss politics, smoke and listen to music.
Gunpowder
Date: 10th Century
Use: Entertainment, Firearms
The black powder was an incredibly important milestone for humanity. This relatively simple explosive mixture might be best known for its use in weapons and fireworks, but it also offered new means of mining for resources, which was a massive time — and energy-saving innovation. The formula originates in China where the mixture was first used for setting fires. The impact of this technology on the world of weaponry is well known to us now.
1. What does the Printing Press and Gunpowder have in common?| A．They have similar uses. | B．They were related to China. |
| C．They appeared at the same period. | D．They were time-saving innovations. |
| A．It produced books in Europe. | B．It freed up lots of human labor. |
| C．It changed the game of printing. | D．It made knowledge accessible affordably. |
| A．Another choice to alcohol. | B．Means of mining for resources. |
| C．A place to meet and play games. | D．Important milestones for humanity. |
相似题推荐
【推荐1】It is practically inevitable: sometime around the age of 40 people start to need reading glasses. Try as they might, there’s no avoiding it. One mobile app creator claims that practicing with their technology can train your eyes to see better.though some eye doctors are not sure.
The reason why many people eventually need reading glasses is that the lens (晶状体) of the eye loses flexibility with age, and has trouble focusing on nearby objects. The condition is called presbyopia (老花眼), which is just a natural side effect of aging.
The first app claiming to work out the solution is called GlassesOff. First you take a test given by the app, and then follow its customized training course. Three days a week, for 12-15 minutes, you’ll go through a series of visual exercises, such as recognizing small gray letters on a gray screen. After two or three months, it claims that you can kiss your reading glasses goodbye.
“We wanted to develop an application that can help people improve their reading ability by improving the way that the brain processes information.” says GlassesOff CEO Nimrod Madar. Until recently it wasn’t possible because scientists did not understand how the image processing capability of the brain actually works. “GlassesOff comes up with the idea of neuroplasticity (神经可塑性). Studies have shown that through training new connections can be made in the brain So that it can continue adapting to the world around us. In terms of vision, this means that through training, the brain may be able to form new connections that allow it to clearly process text even when the text is blurred by aging eyes.
In a 30-person study published in Scientific Reports in February, some participants were able to read letters 1.6 times smaller after using the app. Adults aged 40 to 60 years old had the most success. The study also found that the users’ eye health improved by an average of 8.6 years.
Sounds too good to be true? Well, it probably is. “Human vision quality is determined by the physical eye and the way he brain reads the information that the eye captures,” says Rhee, a doctor from Harvard University. “To think that we can reverse (逆转) presbyopia only by neuroplasticity is just not accurate.” It might not make a huge difference in terms of fighting presbyopia, but brain training could make a difference for younger people whose eyes are still more flexible.
1. Which of the following is NOT true about presbyopia?| A．It is actually a natural phenomenon of aging of human eyes. |
| B．People tend to suffer form it when they reach the age of 40. |
| C．It can be prevented by means of proper eye muscle exercising. |
| D．It occurs when eyes fail to focus on nearby objects well. |
| A．helping people stay away from presbyopia |
| B．reducing the negative effects of aging on eyes |
| C．making the text that people read larger than normal |
| D．training the brain to process visual information better |
| A．the principle on which GlassesOff works |
| B．why researchers came up with Glassesoff |
| C．how training makes new connections in our brain |
| D．now our brain processes the information that our eyes take in |
| A．Optimistic. | B．Negative. | C．Doubtful. | D．Unconcerned. |
【推荐2】Researchers have developed a new method for training people to be creative, one that shows promise of succeeding far better than current ways of inspiring creativity.
This new method, based on narrative (叙述的) theory, helps people be creative in the way children and artists are by making up stories that imagine alternative worlds, change perspective and generate unexpected actions.
“The narrative method works by recognizing that we’re all creative,” said Angus Fletcher, who developed the method and is a professor of English and a member of the Ohio State University’s Project Narrative. “We as a society completely undervalue the creativity of kids and many others because we are addicted to the idea that some people are more creative than others.”
The narrative method of training for creativity uses many of the techniques that writers use to create stories. One is to develop new worlds in your mind. For example, employees at a company might be asked to imagine a world in which all their customers are like that. Another technique is perspective-changing. An employer might be asked to answer a problem by thinking like another member of their team.
“Creativity isn’t about guessing the future correctly. It’s about making yourself open to imagining completely different possibilities,” Fletcher said. “When you do that, you can respond more quickly and flexibly to the changes that do occur.”
Fletcher and his team are also continuing to work with new organizations, such as the Worthington Local School District in Ohio.
“It’s better to hire a diverse group of people and then train them to be creative. That creates a culture which recognizes that there are already creative people in your organization you aren’t taking advantage of,” he said. “This new method of training creativity could only have come from Ohio State University’s Project Narrative, which is itself proof of the power of creativity.”
1. What may make the narrative method workable according to Fletcher?| A．Creating alternative stories. | B．Changing new perspective. |
| C．Generating unexpected tasks. | D．Being aware of our creativity. |
| A．By using examples. | B．By making comparison. |
| C．By answering questions. | D．By quoting techniques. |
| A．To develop a culture gradually. | B．To react to changes quickly. |
| C．To create possibilities freely. | D．To predict the future correctly. |
| A．Ways Can Be Adopted to Inspire Creativity |
| B．The Power of Creativity Has Been Found |
| C．Anyone Can Be Trained to Be Creative |
| D．A Way Is Found to Recognize Creative People |
【推荐3】Most solar panels (太阳能电池板) acquire sunlight from only one side, meaning they can get more or less of it depending on where the sun is in the sky. In recent years, they’ve become far more effective, generally turning around 22 percent of the light they acquire into energy. In a new study published in the journal Joule on Tuesday, scientists introduce a way to increase that percentage even higher: double-sided solar panels that can move to follow the sun.
Basically, these panels can acquire sun from not only their sun-facing side but also from the light reflected off the ground onto their dark undersides. At the same time, a GPS allows them to move on an axis (轴) from east to west in order to always be pointed at a best angle to acquire the sun’s rays. Though double-sided solar panels and sun-following solar panels are both in use currently, models that combine the two technologies aren’t widely available for commercial use. Solar experts predict rapid growth in the market soon, though.
The study authors determined that these two-sided sun-tracking panels produce an average of 35 percent more energy than single-panel systems that don’t move, and are 16 percent cheaper. That holds true even when taking into account changes in weather conditions.
“This means that investing in double-sided and tracking systems should be a safe bet for the future, ” Carlos Rodriguez-Gallegos, the study’s lead author, said.
The same warnings for solar panels and their effect on the local environment apply to the double-sided, moving systems as well, if not more so. Lead used in solar panels can be one source of local pollution, and Dustin Mulvaney, an associate professor of environmental studies, told Earther in an email double-sided panels could mean “twice as much lead” as traditional solar systems.
Since these new panels are more energy efficient, they could save not only money but also land. That would require changing how solar contracts work today.
1. What does most solar panels rely on to acquire sunlight according to the passage?| A．The amount of sunlight. | B．The location of the sun. |
| C．The quality of solar panels. | D．The size of solar panels. |
| A．The sun’s rays. | B．The panels’ undersides. |
| C．The double-sided panels | D．The panels’ sun-facing sides. |
| A．Uncertain. | B．Supportive. | C．Doubtful. | D．Negative. |
| A．Double-Sided Solar Panels that Follow the Sun |
| B．Advantages of the Double-Sided Solar Panels |
| C．Application of the Double-Sided Solar Panels |
| D．Double-Sided Solar Panels and Single-Sided Solar Panels |
【推荐1】Summer is the most popular season to visit Texas since there is so much to see and to do. While visiting the Lone Star State this summer, don’t miss visiting some of these attractions and taking part in some of Texas’ best summer vacation activities.
Visit SeaWorld
There are sea life shows, adventure camps, thrilling rides and a water park. A great many activities are waiting for you at SeaWorld.
Windsurf (风帆冲浪) at South Padre
With miles of shallow (浅的), calm water in the Lower Laguna Madre and strong winds coming off the Gulf of Mexico, South Padre Island is a windsurfer’s dream.
Swim at Barton Springs
Barton Springs is in the famous Zilker Park. It was formed when Barton Creek was built. Since its opening, Barton Springs has become one of the most popular swimming pools in the state.
Take part in an outdoor adventure
In the scenic Texas Hill Country, Lake Buchanan Adventures offers different kinds of activities, including boating, hiking, camping and more.
Camp and hike in Big Bend Park
Big Bend offers a great number of outdoor activities in an old way. Backpacking, mountain biking, fishing, boating, hiking, nature watching and camping－you name it. If it can be done outdoors, it can be done in Big Bend.
Enjoy saltwater fishing
Saltwater fishing in Texas is as good as anywhere else in the USA. More and more fishermen have been discovering this in recent years and packing their bags and rods (鱼竿) to make good use of Texas’ world-class saltwater fishery.
1. The underlined phrase “the Lone Star State” in Paragraph 1 is another name for ________.| A．Texas | B．San Antonio |
| C．South Padre | D．Gulf of Mexico |
| A．Barton Springs is the most popular in the USA |
| B．Lake Buchanan Adventures offers indoor activities |
| C．Big Bend provides outdoor activities in an ancient way |
| D．Fishermen may get the best salt fish when fishing in Texas |
【推荐2】The Internal Business Machines Corporation, known as IBM, says it is making technology for precision weather predictions available to everyone. The company said the new weather forecasts offer more details and bring a level of accuracy once available only in major industrial countries. The forecasting tool is expected to help emergency officials better predict where severe storms will hit. It may also aid airline companies to plan flight paths, as well as farmers to care for crops.
The new system creates weather forecasts more often and with finer details than what is available outside the United States, Europe and Japan. Most forecasts have a resolution (分辨率) of 10 to 15 square kilometers and provide new information every six to twelve hours. IBM’s Global High-Resolution Atmospheric Forecasting System goes down to three square kilometers and provides information every hour.
Fred Carr is a famous climatology (气候学) professor at the University of Oklahoma and was not involved in the project. Carr said the United States has a similar high-resolution forecasting system, “but it’s just for the U.S. because it takes so much computer time. To do it for the whole globe is a pretty important achievement.” Carr added that it is possible to quickly collect observations from radar, airplanes and surface measurements in the United States. But he said it is not clear how IBM gets information from the other 98% of the world. Carr said he believes there will be problems in getting information, so “sometimes those forecasts aren’t going to be very accurate”. Users will be able to decide for themselves. The system now operates on the Weathers.com website and The Weather Channel’s application program for smartphones.
In the future, IBM hopes to improve its forecasts by collecting information from atmospheric pressure sensors used in such phones. The sensors improve the precision of global positioning system, or GPS, technology. For example, they can help fitness tracking instruments measure how many steps a user has taken. IBM said it is not currently using this information but plans to offer users the chance to choose it. Some privacy activists and governments have criticized technology companies for gathering this kind of information. The city of Los Angeles, California has brought a case against IBM for improperly using location information from Weather Channel app users.
1. What is special about IBM’s new forecasting system?| A．It offers a level of accuracy that has never previously existed. |
| B．It has some functions that other systems don’t have. |
| C．It is specially designed to help airline companies. |
| D．It updates more frequently than most systems. |
| A．Taking up too much computer time. | B．Making it universally usable across the whole globe. |
| C．Acquiring detailed forecasting information. | D．Lacking the tools to collect observations. |
| A．installing atmospheric pressure sensors in user’s phones. |
| B．offering users the chance to choose different apps. |
| C．making use of GPS technology unreasonably. |
| D．collecting users’ location information. |
| A．The Spread of IBM’s New Forecasting Technology |
| B．Better Weather Predictions Coming to the Developing World |
| C．IBM’s New Forecasting System Has Unique Advantages |
| D．IBM Still Has a Long Way to Go to Develop Its Forecasting System |
【推荐3】Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy "in real life" but are confident to communicate with others online; others find support from people of their own age on relationship problems, or problems at home.
Sometimes the online world, just like the real world, can introduce problems, such as cheating or arguments. Going online is great fun, but there are also a few people who use the Internet to do bad things. Children must know that there are both the good things and the dangers on the Internet.
To keep children safe ,your management must cover the family computer. Just as you decide which TV programs are suitable, you need to do the same for the websites and chatrooms your children visit. Remind your children that online friends are still strangers and there are dangers too.
Computer studies are part of schoolwork now, so it's likely that your children may know more than you do. We get left behind when it comes to the interactive areas of websites, like chatrooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations (缩写) such as: atb—all the best, bbfn—bye bye for now, cul8er—see you later, gr8—great, Idk—I don't know, imbl—it must be love, kit—keep in touch, paw—parents are watching, lol—laugh out loud, xlnt—excellent!
It seems like another language, and it is!
1. The passage is meant for .| A．children | B．teachers |
| C．parents | D．Net bar owners |
| A．not allow them to use the Internet | B．surf the Internet together with them |
| C．teach them to use correct Net words | D．choose suitable websites and chatrooms for them |
| A．bbfn | B．1ol | C．cul8er | D．paw |
| A．The chat language is strange to adults. | B．The Internet is not good for children. |
| C．Children can chat so much online. | D．The Internet is a good place for children. |
【推荐1】Some of the world’s most famous musicians recently gathered in Paris and New Orleans to celebrate the first annual International Jazz Day. UNESCO( United Nations Educational, Scientific and Cultural Organization) recently set April 30 as a day to raise awareness of jazz music, its significance, and its potential as a unifying(联合) voice across cultures.
Despite the celebrations, though, in the U.S. the jazz audience continues to shrink and grow older, and the music has failed to connect with younger generations.
It’s Jason Moran’s job to help change that. As the Kennedy Center’s artistic adviser for jazz, Moran hopes to widen the audience for jazz, make the music more accessible, and preserve its history and culture.
“Jazz seems like it’s not really a part of the American appetite,” Moran tells National Public Radio’s reporter Neal Conan. “What I’m hoping to accomplish is that my generation and younger start to reconsider and understand that jazz is not black and write anymore. It’s actually color, and it’s actually digital.”
Moran says one of the problems with jazz today is that the entertainment aspect of the music has been lost. “The music can’t be presented today the way it was in 1908 or 1958. It has to continue to move, because the way the world works is not the same,” says Moran.
Last year, Moran worked on a project that arranged Fats Waller’s music for a dance party, “Just to kind of put it back in the mind that Waller is dance music as much as it is concert music,” says Moran. “For me, it’s the recontextualization. In music, where does the emotion(情感) lie? Are we, as humans, gaining any insight(感悟) on how to talk about ourselves and how something as abstract as a Charlie Parker record gets us into a dialogue about our emotions and our thoughts? Sometimes we lose sight that the music has a wider context,” says Moran, “so I want to continue those dialogues. Those are the things I want to foster.”
1. Why did UNESCO set April 30 as International Jazz Day?| A．To remember the birth of jazz. |
| B．To protect cultural diversity. |
| C．To encourage people to study music. |
| D．To recognize the value of jazz. |
| A．Jazz becoming more accessible. |
| B．The production of jazz growing faster. |
| C．Jazz being less popular with the young. |
| D．The jazz audience becoming larger. |
| A．It will disappear gradually. |
| B．It remains black and white. |
| C．It should keep up with the times. |
| D．It changes every 50 years. |
| A．Exploring the Future of Jazz. |
| B．The Rise and Fall of Jazz. |
| C．The Story of a Jazz Musician. |
| D．Celebrating the Jazz Day. |
【推荐2】Once there was an old man in a town. He always forgot a lot of things. So his wife always had to say to him, “Don’t forget this!”
One day he went on a long trip alone. Before he left home, his wife said, “Now you have all these things. They are what you need for your trip. Take care of your things during the trip.”He went to the station, bought a ticket and got on the train with it.
About half an hour later, the conductor began to check the tickets. He came to the old man and said, “Will you please show me your ticket?”The old man looked for his ticket in all his pockets, but he could not find it. He was very worried. “I can’t find my ticket. I really bought a ticket before I got on the train.” said the old man.
“I believe you bought a ticket. All right, you don’t have to buy another one.” said the conductor kindly. “But how can I know where I’m going?----I can’t remember my station!”the old man said sadly.
1. The old man in the story was very .| A．kind | B．poor |
| C．forgetful | D．sad |
| A．The old man forgot to buy it. |
| B．The old man could not remember where it was. |
| C．The old man showed it to the conductor. |
| D．The old man’s wife took the ticket away. |
| A．didn’t believe | B．laughed at |
| C．believed | D．felt sorry for |
| A．he had to buy another ticket |
| B．he lost all the things his wife gave him |
| C．he did not know where he was |
| D．he did not know where he should get off |
| A．The man did not buy a ticket |
| B．The man had to get off the train because he had no tickets |
| C．The man bought another ticket |
| D．The conductor was considering where he should get off. |
【推荐3】Generally,when rescue workers save the lives of people in emergency situations,they never see each other again.However,this was not the case for Mike Wilson,a member of the U.S.Air Force,and Jennifer Brown,the"little"girl Wilson picked up from the waters of Hurricane Ike in 2008.
The Air Force pilot took a photo of the moment Jennifer gave her rescuer the biggest hug that he would never forget.The photo touched hearts around the world.For Wilson, who was fighting an illness at the time,it was especially precious.He carried the photo with him everywhere to remind him of one of the most special moments in his life. Eventually, he decided to find the little girl who changed his life and even ran a FindIkeGirl activity on social media.
Finally,10 years later,the two met again on the set of The Real in September 2018. And Wilson told Jennifer,"You, rescued me more than I rescued you".They did not end their friendship there.Ever since they met again,Wilson has visited her family and has spoken to her on the phone weekly.This Saturday,he will visit the Browns again,as 14-year-old Jennifer is bringing him to her military training program,which she encouraged herself to join in with the support Wilson has provided."I'm going because I would do anything for her and her family in return for the hug.They mean as much to me as my own family,"Wilson says.
The girl tells PEOPLE:"The program was very interesting and a challenge for me because I had never done it before".She even plans to join the military one day."I am Proud of her no matter what she does and will support her in everything she does,"Wilson said."I think she understands service and I believe that she will do great things no matter what she chooses."
1. How did Wilson and Jennifer come to know each other?| A．Wilson took a photo for Jennifer. |
| B．Wilson rescued Jennifer in a disaster. |
| C．Jennifer encouraged Wilson to fight an illness. |
| D．Jennifer brought Wilson to a training program. |
| A．find the girl he once saved |
| B．raise money for Jennifer's dream |
| C．share the moving story of Jennifer |
| D．encourage more people to be helpful |
| A．managed to save Wilson's life |
| B．offered Wilson courage to go on |
| C．made Wilson known to the world |
| D．developed a lasting friendship with Wilson |
【推荐1】It’s often said of British people that they are very aware of each other’s social rank. Britons can usually work out a fellow countryman’s background from the way they speak or dress, and may even treat them differently based on this. But although this may have been truer in the past than it is today, visitors to Britain say that they still notice it. The comic play Pygmalion (1913), by the Irishman George Bernard Shaw (1856-1950), is a famous exploration of the importance of social rank in British society.
The main story of the play concerns a working class girl, Eliza Doolittle, a flower seller from London. Two upper class gentlemen try to see if they can get Doolittle to appear like an upper class lady after sending her for elocution lessons. Professor Henry Higgins, a language expert, says it can be done; his friend Colonel Pickering says that it’s impossible. Even so, Higgins sets out to teach Eliza how to “speak properly”.
Of course, Eliza isn’t a lump of clay; she has her own will. She can see that it’s in her best interest to go along with Higgins’ plan to “improve herself”. She wants to be able to sell flowers in a shop rather than on the street. After the training, Eliza proves that a flower girl can pass herself off as a lady at a ball. She is a triumph (赢家), and Higgins has won his bet.
But what happens next? Eliza has her future to worry about. She may be able to fool the upper class into thinking she’s one of them, but she isn’t really one of them.
Shaw seems to be telling us that social rank is about more than the way someone talks-it’s about wealth and privilege. The whole experiment proves the idea that accents and classes are very superficial (肤浅的). The way one speaks and dresses are only markers of class. The class system itself, however, is something completely different.
1. What can we learn about speaking and dressing from Paragraph 1?| A．They determine Britons’ social rank. |
| B．Britons are stricter in them nowadays. |
| C．Britons no longer care about them. |
| D．They could affect others’ opinion of a person. |
| A．dress | B．manners |
| C．speech | D．dance |
| A．She is forced to give up selling flowers on the street. |
| B．She is unwilling to participate in the experiment. |
| C．She is thought of as an upper-class lady at the ball. |
| D．She is hopeful about her future. |
| A．One can enter the upper class after receiving training. |
| B．People should try their best to improve their accents. |
| C．The way people speak greatly affects their social status. |
| D．Social rank can t he judged by dressing or speaking. |
【推荐2】Mae Jemison was born in 1956 in Decatur, Alabama. Her father was a worker. Her mother was a school teacher. Both her parents encouraged their children to keep learning and go after their dreams.
One day when Mae was young, her thumb got hurt. She watched pus oozing out (脓流出). She was curious about pus: what was it and why was it coming out? That simple incident turned into a learning experience. She ended up doing a whole project on pus.
It was no surprise that Mae did well at school. She received a Bachelor of Science degree in chemical engineering (化学工程) and another degree in African and Afro-American Studies from Stanford University.
But Mae didn’t want to study or do just one thing. She chose to study medicine next at Cornell University Medical College. Then she became a doctor. She enjoyed her job, yet her childhood dream of going into space was still in her mind. So she later tried to join NASA’s astronaut (宇航员) training program.
She tried twice and was accepted finally! In 1992, her dream came true. She became the first African-American woman to go into space. Shortly after that, she quit from NASA to do other things. She then became a teacher at Dartmouth College.
Mae’s path wasn’t always easy. At that time, many believed that women didn’t have a place in the world of science. But nothing would stand in her way.
Through the course of her life, Mae was an excellent doctor, scientist and astronaut. Although she has left her job and stopped working, she’s still active. She speaks at many schools and talks about the importance of going after one’s dreams.
1. Why did Mae begin to study science?| A．She wanted to be like her mother who was a scientist. |
| B．Her parents encouraged her to study science. |
| C．She was curious about pus when she was hurt. |
| D．She did best in science at school. |
| A．People didn’t believe women could do well in science. |
| B．She failed many times in her project on pus. |
| C．She was seriously injured and had to quit from NASA. |
| D．She couldn’t focus on one thing for a long time. |
a. She became a teacher at Dartmouth College.
b. She learned medicine and became a doctor.
c. She studied science at Stanford University.
d. She got training in NASA’s astronaut training program.
| A．c-a-d-b | B．c-b-d-a | C．a-b-d-c | D．b-d-c-a |
| A．lived a poor life when she was young |
| B．went into space at the age of 36 |
| C．studied medicine at Stanford University |
| D．had dreamed of being a doctor since childhood |
【推荐3】So far, scientists have named about 1.8 million living species (物种), and that's just a small part of what probably exists on Earth. With so many plants, animals, fungi, and other organisms covering the planet, it can be tough to figure out what type of spider is crawling up your leg or what kind of bird just flew by.
A soon-to-be-launched Web site might help. An international team of researchers has announced the creation of a Web-based Encyclopedia of Life (EOL). The project aims to catalogue every species on Earth in a single, easy-to-use reference guide.
To get the encyclopedia started, the creators will use information from scientific databases that already exist. And eventually, in special sections of the site, nonscientists with specialized knowledge will join. Gardeners, for example, will be able to record the dates that their flowers first bloom each year. Bird-watchers will be able to input which birds they've seen and where. The technology for this kind of tool has only recently become available.
As the EOL develops, you might find it useful for school Projects. The site will have special pages for kids who are studying ecosystems in their neighborhoods. Another convenient feature of the EOL is that you'll be able to pick the level of detail you want to see to match your interests, age, and knowledge.
It now takes years for scientists to collect all the data they need to describe and analyze species. The creators of the Encyclopedia of Life home that their new tool will speed up that process.
1. The Web based EOL aims to __________.| A．fine out what covers the earth | B．list all living things on Earth |
| C．work out the number of birds | D．save the existing plants |
| A．it is run by school students | B．it focuses on different types of grass |
| C．it provides different levels of information | D．it allows non-scientists to review its data |
| A．analyzing species | B．creating a new too! |
| C．collecting data | D．describing species |
